Contents
Aboutthismanual...........iii
Chapter1.Safetyinformation......1
Generalsafety................1
Electricalsafety...............2
Safetyinspectionguide............3
Handlingdevicesthataresensitivetoelectrostatic
discharge..................3
Groundingrequirements............4
Safetynotices(multilingualtranslations)......4
Chapter2.Importantservice
information..............19
StrategyforreplacingFRUs.........19
Strategyforreplacingaharddiskdrive...20
Importantnoticeforreplacingasystem
board................20
Howtouseerrormessage........20
StrategyforreplacingFRUsforCTO,CMV,and
GAV...................20
Productdenition............20
FRUidenticationforCTO,CMV,andGAV
products...............21
Chapter3.Generalcheckout.....23
Whattodorst..............23
Checkoutguide..............24
DiagnosticsusingPC-DoctorforDOS....24
LenovoThinkVantageToolbox.......26
FRUtests...............27
Powersystemcheckout...........28
Checkingtheacpoweradapter......28
Checkingoperationalcharging......29
Checkingthebatterypack........29
Checkingthebackupbattery.......30
Chapter4.Relatedservice
information..............31
RestoringthefactorycontentsbyusingRecovery
DiscSet.................31
Passwords................32
Power-onpassword...........32
Harddiskpassword...........32
Supervisorpassword..........33
Howtoremovethepower-onpassword...33
Howtoremovetheharddiskpassword...33
Powermanagement............34
Screenblankmode...........34
Sleep(standby)mode..........34
Hibernationmode...........35
Symptom-to-FRUindex...........35
Numericerrorcodes..........36
Errormessages............36
No-beepsymptoms...........36
LCD-relatedsymptoms.........37
Intermittentproblems..........37
Undeterminedproblems.........37
Chapter5.Statusindicators.....39
Chapter6.Specialkeys........41
Chapter7.FRUreplacement
notices................43
Screwnotices...............43
Retainingserialnumbers...........44
Restoringtheserialnumberofthesystem
unit.................44
RetainingtheUUID...........45
ReadingorwritingtheECAinformation...45
Chapter8.Removingandreplacinga
FRU..................47
BeforeservicingThinkPadEdgeE320models..47
1010Batterypack.............48
1020Harddiskdrivedoor..........49
1030DIMM................50
1040Harddiskdriveorsolidstatedrive
assembly.................51
1050PCIExpressMiniCardforwirelessLAN..53
1060PCIExpressMiniCardforwirelessWANfor
ThinkPadEdgeE320............55
1070mSATAsolidstatedriveforThinkPadEdge
E320..................56
1080Backupbattery............57
1090Keyboard..............57
1100Keyboardbezelassemblyandpowerbutton
board..................60
1110Bluetoothdaughtercard........62
1120Speakerassembly...........63
1130Fanassembly,systemboardassembly,and
DC-inconnector..............64
1140CPU................73
2010LCDunit...............74
2020LCDbezelassembly..........75
2030Integratedcamera...........76
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